CN202813396U

CN202813396U - Tail gas combustion furnace

Info

Publication number: CN202813396U
Application number: CN 201220400026
Authority: CN
Inventors: 钱彤
Original assignee: 陈晋祥
Priority date: 2012-08-13
Filing date: 2012-08-13
Publication date: 2013-03-20
Anticipated expiration: 2022-08-13

Abstract

A tail gas combustion furnace comprises a water seal tank and a combustion furnace body. The combustion furnace body is successively provided with a combustion chamber and a steam chamber from bottom to top. An exhaust pipe is arranged at the top end of the combustion furnace body. The combustion furnace is provided with a water inlet pipe and a steam pipe, wherein the water inlet pipe and the steam pipe are connected with the steam chamber. The water seal tank is provided with a tail gas pipe, an emptying pipe and a gas inlet pipe. The emptying pipe is provided with an emptying valve. The gas inlet pipe extends into the combustion chamber. The gas inlet pipe is provided with a gas inlet valve. The combustion chamber is provided with a vent valve. A supporting plate which fixes the tail gas pipe and the emptying pipe is arranged between the tail gas pipe and the emptying pipe. The novel tail gas combustion furnace has the advantages of being complete and efficient in tail gas combustion, large in volume of producing gas, safe in operation, easy to clean and with no need of watch of a specially-assigned person. Therefore, a complete success is achieved and good economic benefit of a company is created.

Description

Tail-gas combustion stove

Technical field

The utility model relates to a kind of vent gas treatment plant equipment, especially a kind of tail-gas combustion stove of processing formaldehyde.

Background technology

Along with improving constantly of people's living standard and environmental consciousness, with common quick-action furnace burning formaldehyde tail gas, can't adapt to the needs of the times, general in the production process of industrial formol, the tail gas that produces contains the hydrogen of 18-21%, 0.1% formaldehyde gas and 0.01% methyl alcohol and a small amount of methane gas and 0.4% CO gas 3.6-4.0% carbon dioxide, all the other are 74% nitrogen, industrial formol tail gas directly discharging can cause environmental pollution, it is healthy to affect personnel, can cause potential safety hazard, common quick-action furnace burning formaldehyde tail gas has incomplete combustion, efficient is low, safety in operation is poor, poor stability, be not easy to clean and need the shortcomings such as the special messenger keeps an eye on.

The utility model content

The purpose of this utility model be to provide a kind of simple in structure, practical and convenient, exhaust combustion is complete, efficient is high, steam production is large, security of operation, be easy to the tail-gas combustion stove that cleans and do not need the special messenger to keep an eye on.

For solving the problems of the technologies described above, the utility model provides a kind of tail-gas combustion stove, comprise water sealed tank and combustion furnace body, described combustion furnace body is followed successively by combustion chamber and vaporium from bottom to top, the top of described combustion furnace body is provided with blast pipe, be provided with the water inlet pipe and the steam pipe that connect vaporium on the described combustion furnace, be provided with offgas duct on the described water sealed tank, evacuated tube, air inlet pipe, be provided with exhaust-valve on the described evacuated tube, described air inlet pipe stretches in the described combustion chamber, be provided with intake valve on the described air inlet pipe, be provided with breather valve on the described combustion chamber, be provided with the gripper shoe that fixedly secures two pipe positions between described offgas duct and the evacuated tube.

The utility model improves to be had, and also comprises air blast, and air blast connects described combustion valve by breather valve.

The utility model improves to be had, and described offgas duct and evacuated tube directly distance are 38mm.

The utility model improves to be had, and described air inlet pipe stretches into underwater 50mm-100mm.

The beneficial effects of the utility model are: novel tail-gas combustion stove, reached that exhaust combustion is complete, efficient is high, steam production is large, security of operation, be easy to clean and do not need the technological transformation purpose that the special messenger keeps an eye on, and has obtained success, for enterprise has created good economic benefit.

Description of drawings

Accompanying drawing 1 is the structural representation of tail-gas combustion stove of the present utility model.

Label declaration: 1-surge chamber; The 11-offgas duct; The 12-evacuated tube; The 13-air inlet pipe; 2-combustion furnace body; The 21-combustion chamber; The 22-vaporium; The 23-blast pipe; The 24-water inlet pipe; The 25-steam pipe; The 3-exhaust-valve; The 4-intake valve; The 5-breather valve.

The specific embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, below in conjunction with embodiment and cooperate that accompanying drawing is detailed to give explanation.

See also Fig. 1, a kind of tail-gas combustion stove that the utility model provides shown in the accompanying drawing, comprise surge chamber 1 and combustion furnace body 2, described combustion furnace body 2 is followed successively by combustion chamber 21 and vaporium 22 from bottom to top, the top of described combustion furnace body 2 is provided with blast pipe 23, be provided with the water inlet pipe 24 and the steam pipe 25 that connect vaporium 22 on the described combustion furnace body 2, be provided with offgas duct 11 on the described surge chamber 1, evacuated tube 12, air inlet pipe 13, be provided with exhaust-valve 3 on the described evacuated tube 12, described air inlet pipe 13 stretches in the described combustion chamber 21, be provided with intake valve 4 on the described air inlet pipe 13, be provided with breather valve 5 on the described combustion chamber 21, be provided with the gripper shoe that fixedly secures two pipe positions between described offgas duct 11 and the evacuated tube 12.

During use, tail gas after the Formaldehyde Production passes into surge chamber 1 by offgas duct 11, close slowly first afterwards exhaust-valve 3, open slowly simultaneously intake valve 4, tail gas flows into combustion furnace body 2 along air inlet pipe 13, at this moment open the breather valve 5 on the combustion furnace body 2, air flows into combustion furnace body 2 by breather valve 5, tail gas is with after air fully mixes, in the explosion limit scope that guarantees tail gas safe, light a fire, usually the aerial explosion limit of formaldehyde is 6.2%-73.4%, and the rear whole mist of igniting is 21 internal combustion in the combustion chamber, and temperature is 400-600 ℃, at this moment the heat that produces heats vaporium 22, the water that water inlet pipe 24 passes into outwards provides heat energy from steam pipe 25 after becoming steam through thermal conversion, after tail gas is up to standard through burning, discharges from blast pipe 23.

Surge chamber 1 has effectively been avoided the explosion accident of combustion furnace body 2 and formaldehyde production device in this device.

Wherein, be provided with the gripper shoe that fixedly secures two pipe positions between described offgas duct 11 and the evacuated tube 12, the effect of gripper shoe is to have guaranteed two ligaments evenly and prevented offgas duct 11 vibrations and the destruction that causes.

In the present embodiment, described tail-gas combustion stove also comprises air blast, and air blast connects described combustion chamber 21 by breather valve 5, and air blast is blown into combustion chamber 21 with air, regulates the ratio of whole air in combustion chamber 21 by the rotating speed of regulating air blast.

In the present embodiment, described offgas duct 11 is 38mm with evacuated tube 12 direct distances.

In the present embodiment, described air inlet pipe 13 stretches into underwater 50mm-100mm.

Setting by two body direct ranges, and the tail-gas combustion stove of new structure, its competitive advantage has that exhaust combustion is complete, efficient is high, steam production is large, security of operation, good stability, be easy to clean, and by having facts have proved the Tail-gas combustion stove technological transformation, reached that exhaust combustion is complete, efficient is high, steam production is large, security of operation, be easy to clean and do not need the technological transformation purpose that the special messenger keeps an eye on, and has obtained success, for enterprise has created good economic benefit.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. tail-gas combustion stove, it is characterized in that, comprise water sealed tank and combustion furnace body, described combustion furnace body is followed successively by combustion chamber and vaporium from bottom to top, the top of described combustion furnace body is provided with blast pipe, be provided with the water inlet pipe and the steam pipe that connect vaporium on the described combustion furnace, be provided with offgas duct on the described water sealed tank, evacuated tube, air inlet pipe, be provided with exhaust-valve on the described evacuated tube, described air inlet pipe stretches in the described combustion chamber, be provided with intake valve on the described air inlet pipe, be provided with breather valve on the described combustion chamber, be provided with the gripper shoe that fixedly secures two pipe positions between described offgas duct and the evacuated tube.

2. tail-gas combustion stove according to claim 1 is characterized in that, also comprises air blast, and air blast connects described combustion valve by breather valve.

3. tail-gas combustion stove according to claim 1 is characterized in that, described offgas duct and evacuated tube directly distance are 38mm.

4. tail-gas combustion stove according to claim 1 is characterized in that, described air inlet pipe stretches into underwater 50mm-100mm.